That's why I said compatibility issue, not speed issue.
It's hard to clarify what this compatibility issue is, but I heard about some ISPs lost certain bits in packets while communicating to specific servers due to format difference or whatever reason, and this can cause severe lags for game clients that needs to decode those packets. I guess it'll help the GMs to figure out what the exact problem is if you can ask some of your friends who have similar network setting to test if they lag on iRO.
By the way I do run multi client of 3, but the only problem I have is CPU not enough...freezing my laptop lol
If you aren't aware of the problem that exists no matter what we keep saying you aren't going to understand. You can't say 50% or more of the users on here have a compatibility issue. The problem is with RO. RO is aware they have a problem. Oda is & has been trying to get it resolved for some time know. He just hasn't been able to get other people to make it a Priority. They first tried to reduce the Lag with WoE by terminating pets & other things such as certain skills but nothing has been done to reduce the Server Wide Latency Issue which many people experience. You can ask around. There are many people the get the Time Gap Errors & Disconnects multiple times a day. We just happen to be the main two saying anything about it.
Network Settings don't have anything to do with this & aren't the issue. If they were then you would have a problem with the speed test also.